I am doing thermal solid coupling analysis with *Control_solution=2.
I applied temperature over time to some nodes on the structure, using the keywords *Boundary_temperature_node and *Define_curve, and I also applied an initial temperature to all the points, *Initial_temperature_node is set to 25°C, but the solution process comes out as temperature -6.6e1 out of range.
Here are my *Control_thermal_timestep settings, how do I modify my k-file so that it no longer shows this error.
Definitely seems like a time step problem. Tmin and Tmax = 0 might be causing your problems. Try setting Tmin to a small value like 1e-6 to limit really small time steps and set Tmax to like 0.1. You can also reduce Dtemp to something lower like 0.5 to limit max temp change per timestep.
If non of these work you can also try setting TS=0 for automatic timestep calculation.